Answer:
B. 171.74 cm²
Step-by-step explanation:
Area of a sector =
.
Where,

radius (r) = 8.7 cm
Plug in the values into the formula
Area of sector = 
Area of sector = 
Area of sector = 171.74 cm² (approximated)
Answer:
4/5
Step-by-step explanation:
sohcahtoa meaning sin is opposite over hypotenuse
The simplified version of this equation would be
-x + y